Plano-playing pneumatic action



Feb. 20, .1923.

' H. E. TOWER PIANO PLAYING PNEUMATIC ACTION Filed June 27, 1921cincinnati in" the county of Ha niilton'and' State of'Ohio, and usefulImprovements in Piano-Playing To all whom itmafy Com/2m.

Patented Feb." i

nn'nsonnnng'rowne are o ircnimiTI; 011 0," AssIGNon Tobin's LnwmhoMmfiY;I

A oF'eINcI'NN 'ri, OH

Be-"it known that "I, HERSCHEL a; citizen of theUnitedStates,fi esidingat have invented certain new Pneumatic" Actions, of which "the followingis a specification.

' packing shoWi-ng'the ends I The object of'my in ventionis'ito frametheshelves of the player action ins ich fa manner asto make itsolid,ithvery few joints and yet be in pcaserof repail m p V In thedrawingFigure l is an end viex' vof the player ectionflwithout "any sea l' onit,

I how the different units iare 'heldftogetherlby In building the playeraction it isia'l weys,

preferable'tohave is fe y'peckingjoints as "possihlefland these made upto Withstand, the shrinking and "swelling" (of the Wood caused: byatmospheric,conditions. It i's-"also desirable to Y'have the parts sojoined a stto p he easy'totake apart for'f'repairs;

411 passage down through the'ja' ctiotxand fthe bolts.

gd that 'Whenfth'e shelvesare I v -topiof the other there will be a'eontinuons A B. 1' of Figure 2.

- In the drawings theshelf 1' are ,helci properly spaced'iiromitheshelfboards 2 by the blocks 3 etioneendfl and the shelf blocks 3% atthe otherend .QThe shelves 1' and":

' 2 are notched in ,at each end,

thefirstinote in the shelf; to'nmke'theas sembly uniform andfal'ways' of-esta ndard I length fSO' the blocks 3 The blocks '3, each hayelathrough the Base b10631? In assembling the i intheseme We v to causeleaks th'r o, {Whereas',- v I v v k t the' twoa'blocks 3' 01'4 andthrough the shelves '1 Or2. and down into the cofmp lete 'shelfbedifi'erent shelves toge theiif the-middle shelf [is-placed ontopofthe-bottoni shelf; and held I v in. place by bolts 7, hieh. bolts .7slip i11 Y througlri s1otsf8 in; fthe1b1ocks;3 Vendand'v the top shelfis joined to the middle shelf, y.- In this way there re only 1' twosmall pieces ofwoodito shrinkandfswell the-peck joints if: the screwswe're run "through E: TOWER,"

easily teken'apart p o fanother shelf itsisvnjot as preferable as the oftheshelves 'end'h W the blocks are fastened on to these shelves; alsoFigure Q iS a .ffrontview" of the" player vaction framing -f Figure i3is 121 top View of'fthe middle she1f tekenelong Fi 1, e t S e I"whenobelng glued I ferent. atmospheric changes.

the b1ocks'j' 3-and 4 it will be t a'kepeny completeshelf outanyfrepairs thatniay beneeded to any of the shelves.

made to run 'through the bottom blocks 3 or 4 ofi' ziny shelf'into thetop-blocks 3'01 4 low 'thefc wonldebe so much wood that theiie would'betrouble "f omio'ose joints nnde dif- Byhaving the bolts?- slip into$106518, 05' v very easy "to 5 s by itself for {the diiferentvalvesoripouches contained in 'i f Although oidinary' 'v'siood screws can he,

, belt or a cla np',"and *yet "it willicome under i i What I claim asmyinvention. i v [What Ipclainu "as my invention isr'g- 1. In "a pianoplaying plurality of shelf units,

and each said I v ing means -through,t hef bottom "spacing "block otheru it.

2: In a having spacin blocks on top and bottom,

meansthiough the hottorn-spacing block of 10 i other unit.

the b'ottoln-spacing block 'of one unit and the top spacing hlock'ofanother unit. Q

4, 111 a'piano having 1 spacing blocks each-said units ioined i neansthrough the'bottom spacing block of in seidslots injsaid spamm blocks;

i-:Vitnessest' i I 7 AUL Jul-Iran an, NO MA. HARRIS.

pneumatic, action; I a each said'shelf unit j' having" pacing blocks ontop and, bottom, I

.unit joined together by hindf I ,75 v ofioneunit'and.-th.e'top spacingblo kv fa 1 i I pizino playing pneumatic action, a pluralityofshelfqinits, each saidfshelf unit havingspaein'gblockson ton andbottom,

S pacing locksbeingfl of a ;,'greater; di- 3 inension across saidnnitsjfhan the shelf: hoards o-f saidunits, and each' said innit I[joined togethenby binding means through service hole" 5,? st'ackedgoneon pienOf-p laying pnennmticfietion; B plurality "o-fsheifunits5'ea'chsiiid shelf unit;

A: ssi id spacing blocks having slotstherein vignd P v each/said unitjoined together binding hit and thetopfspaeing hlockoi? sini v i I v vplaying pneumatic 'action, 319 ,p'lu-ralityofshelf units each saidshelf'unit, v on! top and 't'botto n; said spacing, bloe'kshavingslotstherein; and J together by binding Y i one .nnit andvthe topspacing/block; of otherun'itysaid binding me ans being located SOH IQELLTOW Q

